Fall sets in motion a journey of some 3,000 miles for these monarch butterflies, which migrate from southern Canada to their wintering habitat in central Mexico. There, they cluster together in fir trees, creating the illusion of orange, fluttering foliage. They’ll remain in their winter roosts until March, when the journey back north begins. But no one individual monarch will complete the full roundtrip, which exceeds the normal monarch lifespan; instead it will take four generations of monarchs to complete the full migration, each individual seemingly driven by an internal compass that guides its flight path.
Monarch butterflies migrate south
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Aerial view of the Colorado River Delta in Mexico
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Fall for birding
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Traffic jam on the caribou highway
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The Feathers at Frenchman Coulee near Vantage, Washington
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The first ascent
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Presidents Day in America’s front yard
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Sailing on thick ice
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Eastern grey kangaroos in Australia’s Kosciuszko National Park
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The Millennium at 20
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It s Independence Day
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A grotesque scene
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A long path to freedom
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Celebrating World Water Day
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A circular celebration
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Brooklyn Bridge Park in Brooklyn, New York
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Pandas pucker up for International Kissing Day
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A bohemian feline
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And the skies filled with bats…
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Snow on the temple
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Field of Light at Sensorio by Bruce Munro